import re

s = 'SEND OKHTTP/1.1 200 OKX-Powered-By: ExpressAccess-Control-Allow-Origin: *Content-Type: application/json; charset=utf-8Content-Length: 27ETag: W/"1b-o8UOOcmditybAxWlAKrWgHveNW0"Date: Sat, 19 Oct 2024 04:04:08 GMTConnection: keep-aliveKeep-Alive: timeout=5{"actions":[],"status":200}'
match = re.search(r'\{(.*?)\}$', s)

print(match)


print(match.group(0))